Feeling soreness in the knee needs to be treated after identifying the cause. Common causes of knee pain include exertion, synovitis, meniscus injury, etc. Depending on the cause, general treatment, physical therapy, medication, surgery, etc. can be carried out. 1. Exertion: knee pain caused by exertion can be recovered through general treatment, more rest, less walking and hot water foot soak can be gradually recovered. 2. Synovitis: If the knee is sore due to synovitis, you can take diclofenac sodium delayed-release tablets during the pain, anti-inflammatory and pain relief, and localized hot compresses can help recovery. 3. Meniscus injury: If it is meniscus injury, for knee pain, swelling, you can take anti-inflammatory drugs, such as ibuprofen, serious cases need surgical treatment, such as meniscus suture, meniscectomy and so on. It is recommended to go to the hospital in time for examination, after a clear diagnosis for targeted treatment, do not blindly use drugs.